duete; see due, ty 2 ]. syn: duty, obligation refer to something a person feels bound to do. A duty often applies to what a person performs in fulfillment of the permanent dictates of conscience, piety, right, or law: one's duty to tell the truth; a parent's duty to raise children properly.
Mutations in the RB1 gene are responsible for most cases of retinoblastoma. RB1 is a tumor suppressor gene, which means that it normally regulates cell growth and keeps cells from dividing too rapidly or in an uncontrolled way.
What are the causes of Glioblastoma Mulltiforme? My name is Wendy and my husband was diagnosed with a GBM IV in this past Oct. He had a seizure at my mother's funeral (who was also diagnosed with GBM IV in Dec. 06). This is all extremely weird.